Growth and productivity of periwinkle [Catharanthus roesus (L.) G. Don] in relation to integrated nutrient management

An experiment was carried out to study the effect of integrated nutrients application on growth and productivity of Periwinkle. The experiment was conducted using RBD and each treatments with replicates (X³). The growth and productivity parameters were significantly influenced by different nutrient management packages. The treatments T₉ [10 tonnes FYM/ha + NPK (80: 30: 50) kg/ha] followed by T₁₂ [Bone meal + Neem cake (each @ 150 kg/ha) + NPK (80: 30: 50) kg/ha] were found more effective for increasing plant growth and productivity of Periwinkle. The highest yield of plant biomass was recorded with T₁₂ followed by T₁₄ [ZnSO₄4 @ 25kg/ha + NPK (80: 30: 50) kg/ha] during two subsequent experimental years. Results are discussed in detail in present paper.